The goddess of the earth, also known as Ge or Gaea. Mother of the Titans, Cyclopes and Giants. The one-eyed Cyclopes built the heavenly palace on Mount Olympus for the gods after Zeus overthrew his father Cronus and the other Titans who had ruled the cosmos previously. Perhaps in revenge for this overthrow, Zeus and the other gods were attacked on Mount Olympus by the Giants, Earth's other sons. So formidable was this assault that the gods would never have prevailed without the intervention of Heracles, since it had been foretold that a mortal must come to their aid.